<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>zhuye</title>
</head>
<body>
<form name="f" action="LoginServlet">
    用户名：<input name="username" type="text">
    密码：<input type="password" name="password">
    <input type="submit">
</form>
</body>
</html>